#include <stdio.h>

/**
 *
 **/

int main(int argc, char const *argv[])
{
	int a =10;

	int * p = &a;

	//使用变量
	*p = 100;
	printf("a = %d\n", a);

	int b = 20;

	p= &b;
	*p = 200;

	printf("a= %d,b=%d\n",a,b );	



	return 0;
}